Trouble with Ampand 12" sub, need some help!

[HotRoddin]

i'd say something screwy with the wiring from the amp to the sub box .... I don't know much about these new sound systems but when you add the sub box and it blows a 80 amp fuse, that means you're blowing the fuse through the output stage of an amp and they are usually way to isolated from the power circuit to do that, especially an 80 amp fuse.
Is that strictly amp output going to the sub box or is there an amp or something in the sub box that requires direct power ??